India, April 25 -- * The evil stepmother never said, "Mirror, mirror on the wall.". (The line from Disney's Snow White and the Seven Dwarfs is "Magic Mirror on the wall")

* Darth Vader didn't say, "Luke, I am your father." He said: "No, I am your father." (Significantly less dramatic, but it makes more sense in context.)

* Shazaam, a 1990s genie movie starring the comedian Sinbad, doesn't exist. (It was basketball star Shaquille O'Neill who starred as a genie, in Kazaam; but that title barely even rings a bell.)

For decades, entire groups of people have misremembered the same specific things.

This unsettling glitch-in-the-matrix-style phenomenon is called the Mandela Effect, from the fact that many people, in the Aughts, had the inexp...